| Chakachatna River | |
| Map Size: | 300 |
| Pushpin Map: | USA Alaska |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the Chakachatna River in Alaska |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Alaska |
| Subdivision Type4: | Borough |
| Subdivision Name4: | Kenai Peninsula |
| Length: | 36miles |
| Source1: | Chakachamna Lake |
| Source1 Location: | Neacola and Tordrillo mountains |
| Source1 Coordinates: | 61.2156°N -152.3769°W |
| Source1 Elevation: | 1143feet[1] |
| Mouth: | McArthur River |
| Mouth Location: | 3miles north of Trading Bay, Cook Inlet |
| Mouth Coordinates: | 60.9433°N -151.7453°W[2] |
| Mouth Elevation: | 0feet |
The Chakachatna River (Dena'ina Athabaskan Ch'akajatnu) is a stream, 36miles long, in northwestern Kenai Peninsula Borough in the U.S. state of Alaska.[2] It flows from Chakachamna Lake southeastward into the McArthur River, which flows into the Gompertz Channel of Cook Inlet.[3] The river mouth is about 3miles north of Trading Bay and 32miles northwest of Kenai.[2]
Draining parts of the Alaska Range that lie within Lake Clark National Park and Preserve, the Chakachatna and McArthur rivers and their tributaries originate mainly on glaciers. Heavy silt loads limit sportfishing to small clear-water tributaries such as the Chakachatna's Straight Creek. The main game fish on these streams are Chinook, Coho, and sockeye salmon.[4]